Adjust to OIIO change to IC/TS API (#1850)

Didn't catch them all in #1848 -- missed the BatchedRendererServices side.

Signed-off-by: Larry Gritz <lg@larrygritz.com>

src/liboslexec/batched_rendservices.cpp

@@ -14,6 +14,15 @@ using namespace OSL::pvt;
 OSL_NAMESPACE_ENTER
 
 
+#ifdef OIIO_TEXTURESYSTEM_CREATE_SHARED
+namespace {
+std::mutex shared_texturesys_mutex;
+std::shared_ptr<TextureSystem> shared_texturesys;
+}  // namespace
+#endif
+
+
+
 template<int WidthT>
 BatchedRendererServices<WidthT>::BatchedRendererServices(TextureSystem* texsys)
     : m_texturesys(texsys)
@@ -27,7 +36,17 @@ BatchedRendererServices<WidthT>::BatchedRendererServices(TextureSystem* texsys)
         OSL_ASSERT(
             0 && "RendererServices was not passed a working TextureSystem*");
 #else
+#    ifdef OIIO_TEXTURESYSTEM_CREATE_SHARED
+        {
+            std::lock_guard<std::mutex> lock(shared_texturesys_mutex);
+            if (!shared_texturesys) {
+                shared_texturesys = TextureSystem::create(true /* shared */);
+            }
+            m_texturesys = shared_texturesys.get();
+        }
+#    else
         m_texturesys = TextureSystem::create(true /* shared */);
+#    endif
         // Make some good guesses about default options
         m_texturesys->attribute("automip", 1);
         m_texturesys->attribute("autotile", 64);